Newb SNAFU...Remote View Tard Roadblock

[vb-newb]

Ok, I'll admit it, I'm a VB tard. I just dont get what im doing wrong.

Here's the setup...

1) Win 7 host
2) Win 7 guest VB Sandboxed using Sandboxie with NAT network on Workgroup
3) Using third party remote view software RADMIN
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I'm using default port forwarding...can't connect.
Do I use ISP IP? Do I use VB IP? Do I use local router IP since my ISP uses a external IP proxy?
Do I set my router ( linksys ) to allow port forwarding?
I'm using windows firewall and nothing else.
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I've got the remote view server on VB enabled with null method.
I've tried reading the manual but ive got information overload. Cant think straight.
I just want to remote view the VB.
What am I overlooking?

Thanks for your help.

[rjembo]

Dear:

A partir da versão 4.3 Virtualbox não está aceitando o RADMIN. Se V. instalar a versão 4.2 do Virtualbox vai dar tudo certo.